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Questions related from Jw Heo
I did an experiment of making functionalized graphene oxide and dried it in a vacuum oven after centrifugation, and ground f-GO using mortar and pestle. But, after grinding, it still didn't...
29 November 2019 7,598 3 View
I synthesized a silica-functionalized graphene through esterification. I found an ester peak(~1735 cm-1) in the functionalized GO, however, I also found the same peak in the original GO. Then,...
09 September 2019 5,006 3 View
I want to functionalize graphene oxide using esterification. When I searched the papers about this kind of reaction, I found that many authors synthesized ~100 mg of graphene oxide. However, I...
16 August 2019 7,646 3 View
I have used DCC/DMAP catalyst for esterification of graphene oxide. (COOH group of graphene oxide + OH group of silica) However, I had a problem of removing DCU product from DCC. And, I saw the...
16 August 2019 9,927 0 View
I found a paper about grafting silica nanomaterial to carbon fiber. Shortly, 1) CF-COOH is made. 2) With a reflux reaction (at 50C, 4h), CF-COOH reacts with solvent including silica nanomaterial....
18 June 2019 2,083 3 View
I want to make a masterbatch for extrusion (I will use a twin-screw extruder) I searched the method to make masterbatch, and one example is mixing powder and cnt (melt-blending, or centrifugal...
21 April 2019 3,545 3 View
I want to synthesize the compatibilizer of PPS for extrusion, especially PPS-COOH or other PPS derivatives . I found a research paper where PPS-COOH is made by using 'high pressure reactor' Is...
21 February 2019 3,832 2 View
